Update the order of topics in readthedocs

[sunank200]

Description

What is the current behavior?

In the above screenshot - remove the sentence “Getting Started With Universal Transfer Operator” sentence as we anyway have hyperlink for “Getting Started” below it.

More details can be found at slack

What is the new behavior?

• Reorder the docs topics

Does this introduce a breaking change?

No

Checklist

• [x] Created tests which fail without the change (if possible)
• [x] Extended the README / documentation, if necessary